I've used the root stimulator to water in a plant when you transplant into the garden or transplant indoors.
The earliest I've used full strength organic fertilizer is at three weeks.
I usually use a 25-50% application of organic ferts at two weeks.
This time I thought that I'd try Superthrive (vitamins-mineral suppliment) and a light dosage of the root stimulator. Definately an experiment, and I sure hope I don't fuck up.
Shov